203.123.192.0/19
🇰🇷CIDR
203.123.192.0/19
IP Version
IPv4
Addresses
8.1K
Mask
/19 (255.255.224.0)
Country
🇰🇷 South Korea
City
Seoul (Toegye-ro)
RIR
APNIC
Status
allocated
Allocated
3/8/2005
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.123.192.0/19 | AS17597SKB-SAEROMNET-AS-KR-KR - SK Broadband Co Ltd | No ROA | RADB | 6/1/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.123.202.0/23 | AS17597SKB-SAEROMNET-AS-KR-KR - SK Broadband Co Ltd | No ROA | — | 6/1/2026 |
| 203.123.220.0/24 | AS17597SKB-SAEROMNET-AS-KR-KR - SK Broadband Co Ltd | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS17597 | RADB | MAINT-AS4637 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.123.192.0/19Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.123.192.0/19" | jq
External Links